Assignee
AMTECH SYSTEMS LLC
US·45 granted patents·12 pending applications·151 citations·filing 2009–2025
Top patents by PatentIndex Score
57 records- 0198US10121289B1Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2015·Granted Nov 6, 2018·32 cites·8 claims
- 0296US10134210B1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2017·Granted Nov 20, 2018·14 cites·20 claims
- 0394US10769392B1Vehicle tracking system using transpondersAMTECH SYSTEMS LLC·Filed 2019·Granted Sep 8, 2020·12 cites·19 claims
- 0493US11341345B1Vehicle tracking system using transpondersAMTECH SYSTEMS LLC·Filed 2020·Granted May 24, 2022·3 cites·19 claims
- 0593US11257303B2Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2021·Granted Feb 22, 2022·2 cites·15 claims
- 0693US9361492B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2015·Granted Jun 7, 2016·11 cites·25 claims
- 0792US12056566B1Vehicle tracking system using transpondersAMTECH SYSTEMS LLC·Filed 2023·Granted Aug 6, 2024·1 cites·20 claims
- 0892US8344886B2RFID vehicle tag with manually adjustable data fieldsAMTECH SYSTEMS LLC·Filed 2009·Granted Jan 1, 2013·18 cites·21 claims
- 0992US2026087284A1Vehicle tracking system using smartphone as active transponderAMTECH SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 1091US9785804B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2016·Granted Oct 10, 2017·8 cites·13 claims
- 1191US2026025645A1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 1290US10896552B2Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2019·Granted Jan 19, 2021·3 cites·16 claims
- 1390US9313559B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2013·Granted Apr 12, 2016·8 cites·14 claims
- 1488US11663427B1Vehicle tracking system using transpondersAMTECH SYSTEMS LLC·Filed 2022·Granted May 30, 2023·1 cites·20 claims
- 1588US9633238B2RFID system with time slot interleavingAMTECH SYSTEMS LLC·Filed 2014·Granted Apr 25, 2017·9 cites·2 claims
- 1687US10708745B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2018·Granted Jul 7, 2020·3 cites·18 claims
- 1787US10083329B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2017·Granted Sep 25, 2018·4 cites·20 claims
- 1886US12483870B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2024·Granted Nov 25, 2025·0 cites·20 claims
- 1985US10467440B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2018·Granted Nov 5, 2019·3 cites·20 claims
- 2085US9262656B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2015·Granted Feb 16, 2016·4 cites·34 claims
- 2184US2024406698A1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2024·Application pending·0 cites
- 2284US2025174051A1Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2024·Application pending·0 cites
- 2382US12505322B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2023·Granted Dec 23, 2025·0 cites·30 claims
- 2482US2026004275A1Vehicle Tracking System for Congestion Pricing Using TranspondersAMTECH SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 2582US2026004274A1Vehicle Tracking System for Congestion Pricing Using TranspondersAMTECH SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 2681US10733393B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2019·Granted Aug 4, 2020·1 cites·20 claims
- 2780US12437285B1Vehicle tracking system for congestion pricing using transpondersAMTECH SYSTEMS LLC·Filed 2020·Granted Oct 7, 2025·1 cites·20 claims
- 2880US9305404B2RFID vehicle tag with manually adjustable data fieldsAMTECH SYSTEMS LLC·Filed 2014·Granted Apr 5, 2016·3 cites·6 claims
- 2979US10210752B2RFID system with time slot interleavingAMTECH SYSTEMS LLC·Filed 2017·Granted Feb 19, 2019·2 cites·9 claims
- 3077US11887406B2Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2022·Granted Jan 30, 2024·0 cites·20 claims
- 3176US12069552B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2022·Granted Aug 20, 2024·0 cites·18 claims
- 3276US9558383B2Intermodulation mitigation technique in an RFID systemAMTECH SYSTEMS LLC·Filed 2014·Granted Jan 31, 2017·2 cites·8 claims
- 3374US11288464B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2020·Granted Mar 29, 2022·0 cites·20 claims
- 3474US10275949B2RFID vehicle tag with manually adjustable data fieldsAMTECH SYSTEMS LLC·Filed 2016·Granted Apr 30, 2019·1 cites·6 claims
- 3573US12015969B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2021·Granted Jun 18, 2024·0 cites·26 claims
- 3673US9081088B1System and method for estimating range to an RFID tagAMTECH SYSTEMS LLC·Filed 2013·Granted Jul 14, 2015·3 cites·5 claims
- 3772US2022415165A1Rfid system with time slot interleavingAMTECH SYSTEMS LLC·Filed 2022·Application pending·0 cites
- 3871US11039284B1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2016·Granted Jun 15, 2021·1 cites·8 claims
- 3971US9316728B1System and method for estimating range to an RFID tagAMTECH SYSTEMS LLC·Filed 2015·Granted Apr 19, 2016·1 cites·1 claims
- 4070US11323865B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2020·Granted May 3, 2022·0 cites·14 claims
- 4169US10607044B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2019·Granted Mar 31, 2020·0 cites·14 claims
- 4267US11836569B1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2020·Granted Dec 5, 2023·0 cites·20 claims
- 4366US10346648B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2018·Granted Jul 9, 2019·0 cites·14 claims
- 4465US10489987B2Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2018·Granted Nov 26, 2019·0 cites·8 claims
- 4565US2019251758A1Rfid vehicle tag with manually adjustable data fieldsAMTECH SYSTEMS LLC·Filed 2019·Application pending·0 cites
- 4663US11450203B2RFID system with time slot interleavingAMTECH SYSTEMS LLC·Filed 2019·Granted Sep 20, 2022·0 cites·18 claims
- 4762US9996715B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2017·Granted Jun 12, 2018·0 cites·14 claims
- 4860US9607190B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2016·Granted Mar 28, 2017·0 cites·14 claims
- 4957US2014310074A1Apparatus for infrastructure-free roadway tollingAMTECH SYSTEMS LLC·Filed 2014·Application pending·0 cites
- 5056US10302756B2System and method for estimating range to an RFID tagAMTECH SYSTEMS LLC·Filed 2017·Granted May 28, 2019·0 cites·14 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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